STM32F072VBT6 VS STM32F072VbT6 2

[YShah.1]

We have facing issue on microntroller we have recieve we have serial product and curretly we are using STM32F072VBT6 controller but we have order new lot and we are recieve STM32F072VBT6 2 and both are behaviour diffrent so what is major diffrence between them ? please suggest me.

[KDJEM.1]

Hello @YShah.1​ ,

As already mentioned in the datasheet DS9826 and precisely section 8. ordering information, this marking indicates the options as shown in the below figure.

When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

Kaouthar

[Tesla DeLorean]

Check if using same die via DBGMCU DEVID, or info in STM32 Cube Programmer.

Flash sector sizes may be different​.

Check if parts preprogrammed.​

[YShah.1]

 

Hello,

See Both the controller New and old currently we are facing problem on one GPIO with same software and we dont know how many another GPIO problems.Please suggest me what we can do.

[waclawek.jan]

This is the chip revision

 

Check errata to find out if there's any relevant difference between the revisions - most likely, there is none.

> we are facing problem on one GPIO

What problem? On which GPIO? Do you have *all* supply pins (VDDxx, VSSxx) connected properly?

JW

[Tesla DeLorean]

I'm sure there's documentation, these parts have different die from different fabs.

Suggest you start going through the documentation carefully and completely.

You're going to need to be more specific about what "issues" you are encountering.

[YShah.1]

Hello

Yes all Supply pin and all Ok because this is use on our serial product line and software will be same ,and currently we are facing problem on one gpio but we are pending the the Other test so I don't how many GPIO problems.

[Tesla DeLorean]

Which GPIO, what is the problem with it? Be specific, this is all far too vague.

Let's start with the issue you currently know about or have identified.

The software should be able to identify which part is which, they have different die, and will identify differently in a register you can read.

https://www.st.com/resource/en/reference_manual/rm0091-stm32f0x1stm32f0x2stm32f0x8-advanced-armbased-32bit-mcus-stmicroelectronics.pdf

DBGMCU_IDCODE Address: 0x40015800

[KDJEM.1]

Hello @YShah.1​ ,

Could you please check the REV_ID of STM32F072VbT6 2 using STM32CubeProgrammer.

What is the REV_ID you have found?

Thank you.

Kaouthar

[YShah.1 · Accepted solution]

Hello ,

Problem will be resolved and It's unbilivble Solution I don't how it's possible.

See.

Till Now I am uploading a previous working Hex file ​and It's not working on new version of Controller but in older controller that Hex file working.

Now I am open My original firmware on IDE and Recompile and Generate Hex file and upload it both versions of Controller and it's working fine.

I don't how it's possible any one can Idea about that ?

Thanks for your support ​